2-(4-nitro-5,6,7,8-tetrahydro-1-naphthylimino)-3-thia-1-azaspiro[4.4]nonane 、
溴代异丁烷 以to afford 1-isobutyl-2-(4-nitro-5,6,7,8-tetrahydro-1-naphthylimino)-3-thia-1-azaspiro[4.4]nonane的产率得到1-isobutyl-2-(4-nitro-5,6,7,8-tetrahydro-1-naphthylimino)-3-thia-1-azaspiro[4.4]nonane